Functional Modules - Huawei E5221 Product Description

4.2 Functional Modules

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Issue 03 (2013-05-06)
Radio frequency module: It sends/receives radio signals and
modulates/demodulates the radio frequency (RF) signals and baseband signals.
Baseband signal processing: It processes
HSPA+/HSPA/UMTS/EDGE/GPRS/GSM baseband digital signals, including:
Modulating/Demodulating HSPA+/HSPA/UMTS baseband signals
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Modulating/Demodulating EDGE/GPRS/GSM baseband signals
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Encoding/Decoding HSPA+/HSPA/UMTS channel
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Encoding/Decoding EDGE/GPRS/GSM channel
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Bottom layer driver: It drives peripherals, including USB device, Wi-Fi device,
indicator, button, SIM card and microSD card.
Protocol stack system: It processes protocols of
HSPA+/HSPA/UMTS/EDGE/GPRS/GSM and TCP/IP.
Application system: It provides management system, including SMS, PS
domain service, Wi-Fi configuration, network service, WEB service and WEB
page. The user can set management parameters by WEB page.
User interface: It provides human-computer interaction, including indicator and
button.
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HUAWEI E5221 Mobile WiFi V100R001
Product Description
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